Lumberg Chassis Jack Socket, Stereo. From Lumberg, this chassis mounted stereo Jack socket is designed for rear mounting. With solder eye termination and a robust nickelled housing, this phone audio connector offers a secure and durable connection. It includes a screw on nut to secure the connector neatly into a panel. Designed for use in commercial and domestic audio applications, this jack socket can be fitted for studio use, or in consumer hi-fi and audio visual equipment. It may also be used in various telecom and communication devices, from tour bus microphones to nurse call systems. Features and Benefits. Nickle Plated Contact Vertical Socket Lifecycle of over 1000 mating cycles Insulation resistance 10 ;sup>8 ;/sup> ohm Test Voltage 500 V/60 s